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[Basic Chemicals] Sharing a trade setup mid-session

Hannah Berg
Published on 2026-11-13

[Basic Chemicals] Sharing a trade setup mid-session

Sharing an arbitrage play I do a lot: PX, that is, paraxylene. As a chemical, paraxylene gets pushed around by crude oil. Everyone knows that recently, because of the US-Iran war and the Houthi conflict with Saudi Arabia, exports through the Strait of Hormuz and the Bab el-Mandeb Strait have been restricted.

Crude has been pushed steadily higher. Whether the move is a strong rally or a drop, the near month usually moves first — that's an important logic behind arbitrage.

Lately I've also been doing long arbitrage on crude-related products like methanol, asphalt, and fuel oil, and I've had some modest gains — profits hit a new high.

But these past couple of days, paraxylene has caused some big swings in my account. That's because when the PX12-PX1 spread hit 200, I decisively went short. Even though paraxylene is a chemical too, sometimes it moves against the other chemicals.

Normally, with the cancellation month weighing on it, around 200 is the high. But before, on paraxylene I always did butterfly spreads. This time I wanted to do a single reverse spread, and with the cancellation month on the far leg, too. Then yesterday the spread shot all the way up to 300. I lost 100 points because of my own thinking, and it hurt.

That was the PX12-1 spread: I entered short at 200, and it peaked at 300.

Luckily, I went back to butterfly spreads and decisively positioned in the far months of paraxylene: PX1-2 and PX2-3. When the spread hit its high of 80, I decisively went short, and today I finally got my payoff.

Comments

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  • Priya Kapoor 2026-11-13 13:57
    Hit a new high again — sharing a good arbitrage opportunity. A quick note on today's close. If you've read my earlier posts, you'll know that for chemicals with a big crude-oil link I do the regular spread, but for paraxylene I like doing the reverse spread. With a cancellation month in play, around 200 is the high. November paraxylene plunged straight from around 160 to negative territory a couple of days ago. The 1-2 spread also fell from 200 to around 160. Personally, though, I prefer butterfly spreads. I lost money on the December contract, but after it pulled back I stopped out and didn't lose much — it bottomed at 180. After I closed the last five lots I stopped trading it. Once I stop out a wrong trade, I usually don't touch it again unless it comes back near the high, and only then would I enter with a small position. These past two days the 12-1 spread rose back to a high of 280, so I took a small position and made a little. I'm still holding the January-to-March butterfly. Earlier I said I closed a third of it at 50, but yesterday it came back to around 80 and I added it back in — pretty accurate, all things considered.
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